浅析机动车综合整治对南昌市环境质量的影响

通过对南昌市实施机动车综合整治--禁鸣喇叭、安装尾气净化装置前后环境质量，分析了机动车综合整治对南昌市环境质量的影响，并提出相应的对策和建议。     

县级环境监测站建设的几点思考

县级环境监测站是环境保护工作中三支生力军之一，但其一直被机构残缺、经费紧张、管理体制不配套、职能未被确认、服务能力差等问题所困绕，本文对这些问题的成因进行了分析，并简要提出了解决的措施和对策。     

Quality control and flux gap filling strategy for Bowen ratio method: revisiting the Priestley–Taylor evaporation model

Micrometeorological measurements were made over an irrigated rice paddy during the Huaihe River Basin Experiment (HUBEX) in 1999. This study addresses the quality control and gap filling strategy for the heat fluxes with the Bowen ratio energy balance (BREB) method. It also endeavors to benefit future studies through comparing five methodologies to estimate the net water exchange. First, a three-step quality control strategy is constructed. Its first two steps guarantee the correct flux directions and reject suspicious data, respectively. The third step forbids supersaturation by considering the Bowen ratio ranges for different flux combinations (termed as “scenarios”). The quality-controlled latent heat (LE) and sensible heat (H) fluxes fall in three scenarios, namely I (LE > 0, H > 0), II (LE > 0, H < 0), and IV (LE < 0, H < 0). Second, the Priestley–Taylor evaporation model (PTEM) is applied to fill the gaps of LE, while the energy balance relationship is used to gap-fill H, namely H = R _N − G − LE (R _N : net radiation; G: soil heat flux). Central to the success of this strategy is the idea to calibrate the Priestley–Taylor parameter (α) in a scenario-specific manner. On average, α values are calibrated as 1.20 and 1.35 for scenario I and II, respectively. For scenario IV, most α values lie in a narrow range, namely from 0.9 to 1.0. Then, α is calibrated as 0.97 to extend the applicability of the PTEM to condensation (negative LE). The scenario-specific treatment explicitly explains the diurnal variation of α derived without distinguishing the scenarios. Third, five methodologies are compared in the calculation of net water exchange, including PTEM-gap-filled BREB method (M1), energy-balance-based eddy covariance method (M2), and three simplified models to estimate LE, respectively as R _N − H, R _N − G, and R _N . A major finding is that G and H have a similar effect of about 3% in the net water exchange. Thus, if either is neglected, the net evaporation should be slightly lowered to avoid overestimate, by 3% as a rule of thumb from this work.     

江苏省环境监测现代化建设框架

介绍了江苏省环境监测现代化建设的背景,阐述了建设目标,并对具体建设内容进行了讨论。     

南京市国控环境空气监测网络优化

对南京市现有的国控环境空气监测网络现状进行了分析,指出了其存在的问题,提出了环境空气监测网络优化方案.     

3.29京沪高速液氯泄漏事故应急监测方法选择和效果评述

介绍了“3.29”液氯泄漏污染事故应急监测过程中确立监测方案和科学选择监测方法以及取得的为事故处理指挥部提供优质快速的技术支持和服务的效果。     

环境监测监控系统在福州市的应用

阐述了福州市环境监测监控系统的建设目标，介绍了环境监测监控系统的结构，以及环境质量监测监控子系统、重点污染企业在线自动监测监控子系统、城市烟尘视频监控子系统和GIS环境监控子系统的功能。指出应用环境监测监控系统，提高了环境监测工作的科学化和规范化水平。     

浅析目前大气环境质量评价报告书中存在的问题

就当前建设项目对大气环境影响的环境质量评价中存在的问题,进行了论述,指出五个较突出的问题,以求改进,保证评价报告书的质量.     

Shopping studies for regional planning

This paper is based on a shopping study carried out by the Department of Geography, University of Utrecht, during 1983. It is concerned with retail planning research for larger regions and starts with a state of the art review of retail planning research in the Netherlands. The aim, in developing a new research strategy, was to reduce time and costs through using computer facilit es for both data handling and data collection. There is discussion of methodology and some outcomes to demonstrate the possibilities of the strategy.